52787217 has 8 divisors (see below), whose sum is σ = 80437696. Its totient is φ = 30164112.

The previous prime is 52787201. The next prime is 52787233. The reversal of 52787217 is 71278725.

It is an interprime number because it is at equal distance from previous prime (52787201) and next prime (52787233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52787217 - 2⁴ = 52787201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52787117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256818 + ... + 1256859.

It is an arithmetic number, because the mean of its divisors is an integer number (10054712).

Almost surely, 2^52787217 is an apocalyptic number.

It is an amenable number.

52787217 is a deficient number, since it is larger than the sum of its proper divisors (27650479).

52787217 is a wasteful number, since it uses less digits than its factorization.

52787217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513687.

The product of its digits is 54880, while the sum is 39.

The square root of 52787217 is about 7265.4811953511. The cubic root of 52787217 is about 375.1252132975.

The spelling of 52787217 in words is "fifty-two million, seven hundred eighty-seven thousand, two hundred seventeen".